I have the following Code that I need help with.  I have several POs that I need to save to the hard drive in tif format.  I can do one, but can't get multiple to work as a batch.  I tried calling the print routine from another form, but the PO # won't change.  Can anyone give me an ideal on how to do this?  Using Local Report.

Imports Microsoft.Reporting.WebForms
Imports System.Data.SqlClient
Imports System
Imports System.Data
Imports System.Data.Odbc
Imports System.Configuration
Imports System.Web
Imports System.Web.Security
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.Web.UI.WebControls.WebParts
Imports System.Web.UI.HtmlControls
Imports Microsoft.VisualBasic
Partial Class POSaveTif
    Inherits System.Web.UI.Page
    Dim PONumID As String
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        Dim SessionVariable As String = Session("PONumID")
        Dim rp As ReportParameter = New ReportParameter("PID", SessionVariable)
        ReportViewer1.LocalReport.EnableExternalImages = True
        ReportViewer1.LocalReport.SetParameters(New ReportParameter() {rp})
        ReportViewer1.LocalReport.Refresh()
    End Sub
    Protected Sub Page_PreRenderComplete(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.PreRenderComplete
        Dim PoNum As String = Session("PONumID")
        Response.ContentType = "Image/tif"
        Using local As New Microsoft.Reporting.WebForms.LocalReport
            local.ReportPath = "PoPrint.rdlc"
            Dim byts() As Byte = ReportViewer1.LocalReport.Render("Image", Nothing, Nothing, Nothing, Nothing, Nothing, Nothing)
            Using ms As New IO.MemoryStream(byts)
                Using bmp As New Drawing.Bitmap(ms)

                    Dim FileName As String = "C:\" & PoNum & ".tif"
                    MsgBox(FileName)
                    bmp.Save(FileName, System.Drawing.Imaging.ImageFormat.Tiff)
                End Using
            End Using
        End Using
        Response.ClearContent()
        Response.ClearHeaders()
        Response.Flush()
        Response.Close()
    End Sub

Hi,

From your description, you always get the same PONumID when you execute that page with different PONumID. If so, please confirm whether those PONumIDs have been transferred into that page right. In addition, this issue may be caused by page cache, so I suggest using the following code to clear the page cache.

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        Response.AppendHeader("Cache-Control", "no-store")
        Dim SessionVariable As String = Session("PONumID")
        Dim rp As ReportParameter = New ReportParameter("PID", SessionVariable)
        ReportViewer1.LocalReport.EnableExternalImages = True
        ReportViewer1.LocalReport.SetParameters(New ReportParameter() {rp})
        ReportViewer1.LocalReport.Refresh()
    End Sub

Please feel free to let me know if I’ve misunderstood anything.